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There is a type of fluid that surrounds the brain and the spinal cord. This is a type of spinal fluid that supports the brain and sometimes due to a preexisting condition these tend to leak. The fluid is called the Cerebral Spinal Fluid or CSF, and the discharge sometimes happens through nostrils or ears. In medical terminology, the leak is referred to as a CSF leak or a spinal fluid leak. They can occur without any condition too, but most of the times they happen where there is a blunt force trauma to the brain, like a head injury or surgery to the brain. The common symptom is a severe headache followed by blurred vision, nausea, dizziness, and stiffness. Usually, the headaches occur when the head is in an upright position. A neurologist should immediately be consulted if such condition exists. 90% of the cases do not require surgical intervention. Complete bed rest for two weeks followed by medications should treat them. However, if the condition doesn't treat itself, then CSF leak surgery is performed. A CSF Rhinorrhea Repair Surgery Treatment involves endoscopy and has the neurologist placing a graft to block the hole. Sometimes blood patches (Blood clots) are also used in blocking the holes. These conditions can be life threatening if left unchecked and an MRI or a CAT scan can reveal the exact nature of the injury. Only an experienced neurologist can treat this condition as this is one of the tricky fields of neurology involving the brain.